Leaderboard

Here's a new STM32F4 Core: It has most of the functionality of the Discovery one, but has a few improvements: USB ports are on the breakout, so there's proper USB B USB A "host" - still need to test this, but it's normally done setting the ID pin low. I've put a panel switch for selecting host/slave and there's a jumper to power the slaved device if needed. LEDs and reset button on the panel; "blue button" as a jumper a 3.5mm socket for a footswitch or gate (or for other purposes) some connectors for +5V supply direct off the USB bus 3v3 Vreg is rated at 1000mA I think the panel connectors could be distant from the Core I haven't tested the AINs, but it is possible to use an external reference. At the moment I have the breakout mounted on female headers; I suppose they could be directly soldered if extra height is needed. The JTAG and other pin headers do take up a bit of vertical height. These could be cut off if needed; the breakout pins are still there on the headers. There is a realtime clock oscillator (and caps) that I removed as they overlapped with a port. A downside compared to Discovery is that there isn't any ST-Link. This is easily overcome with a cheap ST-link clone, or even an old Discovery board could be used. At least all of the functions for a SEQ are working well. I realise that some of the cabling etc. is a bit wonky for the moment. Best, Andy

I did one but never manufacture the board then never test it. It's a good way to gain space, the board is really small, but if you're not afraid about small smd components. I have to remember exactly which package I use, but same CPU, there's exactly the same port as usual, except J11 which is a 6 midi ports and USB, two tact, micro-SD on board. I can share if you want it... Best Bruno